Percarbonate stabilised by coating with an aqueous solution of phosphate and boron compounds
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United States of America Patent
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Sep 23, 1997
Grant Date -
N/A
app pub date -
Jun 21, 1995
filing date -
Dec 23, 1992
priority date (Note) -
Expired
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Abstract
A process for stabilising percarbonate by coating with a coating agent. The percarbonate particles are treated with a concentrated aqueous solution containing at least one boron compound selected from the metal and ortho boric acids and at least one phosphate. Water is removed to provide the coated percarbonate particles which are useful in bleaching and washing compositions.
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